Do I give up??????

I'm TTC now a while!!! So this month af isn't due until 10/18 but I did a test today and I got a bfn. My only symptom is that my boobs are so tender. At this point I'm thinking do I give up and try and aim for something else??? I'm thinking of competing in a body building competition!!! This would be a challenge for me. I do an odd kettlebell class and I do a 5km run so this would be new to me. I feel like I need something new to focus on because I didn't think conceiving would be this hard!!!